mirror of https://github.com/knative/pkg.git
53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
/*
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Copyright 2018 The Knative Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controller
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import (
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"knative.dev/pkg/kmeta"
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)
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type Callback func(interface{})
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func EnsureTypeMeta(f Callback, gvk schema.GroupVersionKind) Callback {
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apiVersion, kind := gvk.ToAPIVersionAndKind()
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return func(untyped interface{}) {
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typed, err := kmeta.DeletionHandlingAccessor(untyped)
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if err != nil {
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// TODO: We should consider logging here.
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return
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}
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// We need to populated TypeMeta, but cannot trample the
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// informer's copy.
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// TODO(mattmoor): Avoid the copy if TypeMeta is set.
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copy := typed.DeepCopyObject()
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accessor, err := meta.TypeAccessor(copy)
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if err != nil {
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return
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}
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accessor.SetAPIVersion(apiVersion)
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accessor.SetKind(kind)
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// Pass in the mutated copy (accessor is not just a type cast)
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f(copy)
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}
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}
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